Suppose that I have an android application which always runs at background. What the app does is listening for any changes on android’s screen and then take a note to database. (This is a useful legal feature of the app that I am developing). So, Is there any way to listen for the changes of android’s screen?
UPDATE1: I want to detect the change of screen content, Not just the orientation.
Update2: I found an application (Droid VNC) did this very good. Anyone know what technology VNC use there?
Thanks,
Nguyen Minh Binh.
If I am not wrong you are definitely talking about screen content not orientation if yes then you have to sense the framebuffer of device for that you need rooted device